Replace the get_online_clients placeholder with the latest QQ online-device snapshot and return stable OneBot fields for client ID, device name, and localized device category.
Fail explicitly when no snapshot has been observed or when callers request an unsupported fresh refresh, while preserving an observed empty snapshot as a successful result. Update SDK types and generated MCP schemas, and add action-level coverage for every state.
DrSmoothl
f3bfec04a5